Implement qpSum stat for video send ssrc stats.

webrtc/media/engine/webrtcvideoengine2_unittest.cc

 /*
  *  Copyright (c) 2004 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 2887 matching lines @@
   FakeVideoSendStream* stream = AddSendStream();
   webrtc::VideoSendStream::Stats stats;
   stats.frames_encoded = 13;
   stream->SetStats(stats);
 
   cricket::VideoMediaInfo info;
   ASSERT_TRUE(channel_->GetStats(&info));
   EXPECT_EQ(stats.frames_encoded, info.senders[0].frames_encoded);
 }
 
+TEST_F(WebRtcVideoChannel2Test, GetStatsReportsQpSum) {
+  FakeVideoSendStream* stream = AddSendStream();
+  webrtc::VideoSendStream::Stats stats;
+  stats.qp_sum = rtc::Optional<uint64_t>(13);
+  stream->SetStats(stats);
+
+  cricket::VideoMediaInfo info;
+  ASSERT_TRUE(channel_->GetStats(&info));
+  EXPECT_EQ(stats.qp_sum, info.senders[0].qp_sum);
+}
+
 TEST_F(WebRtcVideoChannel2Test, GetStatsReportsUpperResolution) {
   FakeVideoSendStream* stream = AddSendStream();
   webrtc::VideoSendStream::Stats stats;
   stats.substreams[17].width = 123;
   stats.substreams[17].height = 40;
   stats.substreams[42].width = 80;
   stats.substreams[42].height = 31;
   stats.substreams[11].width = 20;
   stats.substreams[11].height = 90;
   stream->SetStats(stats);
@@ skipping 951 matching lines @@
 }
 
 // Test that we normalize send codec format size in simulcast.
 TEST_F(WebRtcVideoChannel2SimulcastTest, SetSendCodecsWithOddSizeInSimulcast) {
   cricket::VideoCodec codec(kVp8Codec270p);
   codec.width += 1;
   codec.height += 1;
   VerifySimulcastSettings(codec, 2, 2);
 }
 }  // namespace cricket